Rotary engine.



J. GO ALARD.

ROTARY ENGINE.

APPLICATION IILED JUNE 13, 1910.

2 SHEETS-SHEET 1.

' cuLuMBIA PLANOGEAFH C01, WASHINGTON, D. c

Patented Aug. 8,1911.

J. GOALARD.

ROTARY ENGINE.

APPLIUATION FILED JUNE 13. 1910.

1,000,257 2 SHEETS-SHEET 2 um/whoa .JE an Ena'lar' 1:1, q/W/tmowo 35% b#QM M I COLUMBIA PLANOCIRAPH C0., WASHINGTON, n. t.

Patented Aug. 8, 1911.

UNITED STATE PATENT FFTCE.

JEAN GOALARD, OF BAYGNNE, FRANCE.

ROTARY ENGINE.

1,coo,257.

To all whom it may concern:

Be it known that I, JEAN GOALARD, of Villa Mary, Rue Bergeret, inBayonne, France, have invented a Rotary Engine, and do hereby declarethe nature of this invention andin what manner the same is to beperformed to be particularly described and ascertained in and by thefollowing state ment.

My present invention relates to rotary engines which include a casingformed with a plurality of cylinders, and rotors within the cylindersadapted to rotate in opposite directions, the engine being especiallyadapt ed for use as a motive power in boats having propellers rotatingin opposite directions.

The objects of my invention are to provide an engine, simple inconstruction, enabling the rotors thereof to operate in oppositedirections and means whereby the direction of rotation may be reversed.

Another object of my invention is to provide means for distributing thefluid pressure used in operating the engine, to utilize the maximumamount of expansive force of the fluid consistent with the constructionof the engine.

Further objects and novel features of the invention will be more fullydescribed in connection with the accompanying drawings and will be moreparticularly pointed out in and by the appended claims.

In the drawings,Figure 1 is a longitudinal elevation of a rotary engineembodying my invention. Fig. 2 is a side elevation of the same. Fig. 3is a cross sectional view on the line AB of Fig. 2. Fig. 4 is a frontelevation, in part section, of a device controlling the steam inletports of the engine. Fig. 5 is a side elevation of a form of rotor usedin connection with the engine. Fig. 6 is a front elevation of the same.Fig. 7 is a central transverse section taken through the engineembodying my invention. Fig. 8 is a view similar to Fig. 3 showing amodi fied form of inlet ports. Fig. 9 is a side elevation of amodification of the rotor used in connection with my invention. Fig. 10is a front elevation of the same.

Similar characters refer to similar parts throughout the several views.

With reference to Figs. 1 to 7 inclusive, the engine comprises twocylinders a and a, carried by a suitable base S, the cylinders beingpreferably formed integral with each other. At each end, the cylindersare pro- Speeification of Letters Patent.

Application filed June 13, 1910.

Patented Aug. 8, 1911.

Serial No. 566,556.

vided with heads H, by which shafts 79, carrying rotors Z) within thecylinders, are supported. The cylinder heads are provided withstufiing-boxes ii of any suitable design and the rotors, with pockets 1extending transversely of the periphery thereof. The cylinders a and aare provided with inlet ports (Z and (Z each communicating with eachcylinder and the fluid pressure is directed to act upon the pockets ofthe rotors by the nozzle openings a and a of the inlet ports (Z and (Zrespectively. As shown in Fig. 3, the inlet ports are widened out attheir juncture with the cylinders in order to spread the fluid pressureand allow a greater area of the pocket surface of the rotors to be actedupon. Outlets for the cylinders a and a are provided at 0 and 0respectively, which openings are widened out at their juncture with thecasing to facilitate the exhausting of the fluid used in operating theengine.

In order to provide means for operating the engine with the rotorsrotating in opposite directions and to reverse the direction of therotation of the rotors simultaneously, I provide a structure shown inFig. 4:, termed a three way valve. It comprises a suitable frame F,which supports a valve proper V through the arm 6 thereof, and wormgearing to operate the valve. The valve is provided with an inlet port 9which is adapted for connection to the source of fluid pressure supplymeans, and outlet ports 7 and h adapted for connection with the inletports (Z and cl respectively, of the engine. The valve is provided witha stem 0 having a port therein which opens at the periphery of the stemat an angle of 90 and is thus adapted to form a communication betweeneither the ports 9 and h, or it and 7. Movement is imparted to the stemby a worm gear and worm 2' and j respectively, the latter being mountedon a spindle 9 supported by the frame F and provided with a wheel 70 tofacilitate rotation thereof.

From the above description it will be seen that with the valve affordingcommunication between the ports 9 and h, the fluid pressure enters theengine port (Z by which the rotors rotate in the directions shown byarrows in Fig. 7. A reverse movement of the rotors is obtained bysetting the valve stem with a communication between the ports 9 and f.

In the modification shown in Fig. 8, the inlet ports 8 and t areprovided with branches 8 and s, and t and 6 respectively, which provideseparate conveying means for the fluid pressure at different pointsalong the periphery of the rotors. As will be seen in the drawings, theentrances of branches .9 and t are not in alinement with those ofbranches 8 and t, and by this means the fluid enters different pocketsof the rotors contemporaneously.

In Figs. 9 and 10, is shown a modification of the rotor in which flangesa are provided at either end thereof, the pockets extending intermediatethe flanges and a spring ring 01, similar to those used in the pistonsof engines, fitted between the flanges to form a surface joint.

From the foregoing description it will be seen that I provide a rotaryengine, the inlet and outlet ports of which are so arranged as tofacilitate reversing of the direction of rotation of the rotors and thatthe fluid pressure is distributed along the pockets of the rotor toutilize the maximum amount thereof consistent with the simplicity ofconstruction of the engine.

I claim:

1. A rotary engine comprising, a plurality of cylindrical casings havingoutlet ports, a rotor for each casing, having pockets extendingtransversely of the periphery thereof, and revolubly mounted within saidcasing, and an inlet port provided with a plurality of branches adaptedto deliver fluid pressure against the said pockets to rotate said rotor,said inlets being arranged to deliver to different pockets of the rotorssimultaneously, combined substantially as described.

2. A rotary engine comprising in combination two cylinders provided withoutlet ports, rotors revolubly mounted within each of said cylinders,and provided with pockets extending transversely of the peripherythereof, an inlet port, provided with branches, adapted to convey fluidpressure to both of said cylinders with outlets directed to rotate saidrotors in opposite directions, a second inlet port, provided withbranches adapted to convey fluid pressure to both of said cylinders withoutlets directed to rotate said rotors in opposite directions and indirections reverse to that of which the first mentioned port is adaptedto rotate the same, the said branches of both of said inlet ports beingarranged to deliver to different pockets of each of said rotorssimultaneously, and means forming c0n1 munication between either of saidinletports and the source of fluid pressure supply to rotate said rotorsin a predetermined direction.

In testimony whereof I affix my signature in presence of two witnesses.

JEAN GOALARD.

Witnesses JEAN LARRY, PIERRE DAWHING.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents. Washington, D. C.

